Wettest, coldest day of the trip, so what to do? simple, take the Electric Bike Tour. Met at the northern end of Central Park (West 110th St). Tour took us through Morningside, Riverside and along the Hudson to Battery Park. Our tour guide was the remarkable Bob - endlessly knowledgeable and great fun. Be sure to take the trip early and ask for "Best of Bob" - you will be well rewarded with more to see. Three and a half hours flew past.
Will repeat this one.